英语过去时态四种

英语过去时态四种

1.一般过去时，用来表达一个动作在过去的某个特定时间点发生；

2.过去进行时，用来描述过去某个时刻正在发生的事情；

3.过去完成时，用来形容在过去的另一个动作之前完成的动作；

4.过去完成进行时，用来表示一个活动一直持续到过去的另一个时间点。

例句

He had been working at the company for more than thirty years when he retired last year.

到去年退休时他在公司工作了三十多年。

They had sold the old house before they bought the new one.

他们在买新房子之前就把旧房子卖了。

They were watching TV when I arrived.

我到的时候他们正在看电视。

Were they at home when you dropped by?

你去的时候他们在家吗？